首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Produce the appropriate sound. B、Press the right-hand lever first. C、Raise their heads above the water. D、Swim straight into t
A、Produce the appropriate sound. B、Press the right-hand lever first. C、Raise their heads above the water. D、Swim straight into t
admin
2021-07-14
91
问题
W: One of the most interesting experiments with dolphins must be one done by Doctor Jarvis Bastian.
What he tried to do was to teach a male dolphin called Bass and a female called Doris to communicate with each other across a solid barrier.
M: So how did he do it exactly?
W: Well, first of all, he kept the two dolphins together in the same tank and taught them to press levers whenever they saw a light. The levers were fitted to the side of the tank next to each other. If the light flashed on and off several times, the dolphins were supposed to press the left-hand lever followed by the right-hand one. If the light was kept steady, the dolphins were supposed to press the levers in reverse order. Whenever they responded correctly, they were rewarded with fish.
M: Sounds terribly complicated.
W: Well, that was the first stage. In the second stage, Doctor Bastian separated the dolphins into two tanks. They could still hear one another, but they couldn’t actually see each other. The levers and light were set up in exactly the same way except that this time it was only Doris who could see the light indicating which lever to press first. But in order to get their fish, both dolphins had to press the levers in the correct order. This meant of course that Doris had to tell Bass whether it was a flashing light or whether it was a steady light.
M: So did it work?
W: Well, amazingly enough, the dolphins achieved a 100 % success rate.
Questions 1 to 4 are based on the conversation you have just heard.
1. What is the purpose of Doctor Jarvis Bastian’s experiment?
2. What were the dolphins supposed to do when they saw a steady light?
3. What happend to the two dolphins in the second stage?
4. How did the second stage of the experiment differ from the first stage?
选项
A、Produce the appropriate sound.
B、Press the right-hand lever first.
C、Raise their heads above the water.
D、Swim straight into the same tank.
答案
B
解析
从原文中If the light was kept steady, the dolphins were supposed to press the levers in reverse order.可以得知,相反的方向为the right-hand lever。
转载请注明原文地址:https://kaotiyun.com/show/MHJ7777K
0
大学英语六级
相关试题推荐
儒家思想(Confucianism)有时候被当作一种宗教,但它更是一种伦理体系。孔子是儒家思想的创始人,孟子(Mencius)和荀子都是先秦时期儒家学说的代表人物,都对儒学的发展做出过巨大贡献。儒家思想的核心是“仁”(benevolence),主张仁爱人之
人们还会在门上粘贴红色的对联(couplets),对联的主题为健康、发财和好运。
李教授经常应邀到各个学校演讲,他的司机也总是随行。
垃圾信息
A、You’dbettersmileorlaughfromthebottomofyourheart.B、Youcan’tfoolyourbodybypretendingtobehappy.C、Asmartmi
A、It’sabetterwaytounderstandideasandconcepts.B、Itusuallycontainstoomanywords.C、Itisafastwaytorememberthin
Itisclearthathumanhistorywillend:theonlymysteryiswhen.Itisalsoclearthatifthetimingislefttonature(or,if
A、Workingoutforsometimeeveryday.B、Keepingone’sidealsofyouthandbelief.C、Keepingagoodmoodeveryday.D、Usingheal
A、Immediately.B、Thefollowingweek.C、Intwoweeks.D、Attheendofthesemester.B这是一道细节题,说话者说会在下周与每个人进行谈话。可见正确答案是B。
A、Theychargevisitorsentrancefees.B、Theykeeptheparktidyandwelcoming.C、Theygoonpatrolintheparktoavoidtheft.D
随机试题
复发性口腔溃疡的临床特征不包括
患者,女性,45岁。有胆囊结石5年,曾胆绞痛发作3次,B超示胆囊结石5枚,其中最大直径约为3cm,首选的治疗方法是
患者,男性,28岁。诊断为尺骨骨折22天,下列并发症可出现的是
在建设方案进行比选时,参与比选的各建设方案应首先满足()的要求。
关于重大危险源控制系统,下列说法错误的是()。
在违反工程建设法律规范的行政责任中,()是适用范围较为广泛的一种。
按现行会计制度及有关规定,下列会计报表中属于静态会计报表的是()。
在安排发展性支出时,首先应安排的是()。
根据《证券法》的规定,下列信息中,属于内幕信息的有()。
【S1】【S8】
最新回复
(
0
)